National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

66°F

19°C

Humidity 96%
Wind Speed NW 8 mph
Barometer 30.13 in (1020.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 16 Aug 2:56 am CDT
Extended Forecast for

Yankton SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 63. West northwest wind 5 to 10 mph.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 80. North northwest wind 5 to 10 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. North northwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. Light south wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 83 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 63. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 79. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 63. West northwest wind 5 to 10 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 80. North northwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 59. North northwest wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. Light south wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 63. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%.
Tuesday
Showers and possibly a thunderstorm. High near 79. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 59.
Wednesday
Partly sunny, with a high near 76.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Thursday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.88°N 97.4°W (Elev. 1204 ft)
Last Update:
3:33 am CDT Aug 16, 2026
Forecast Valid:
3am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation